diff --git a/PrinterDriverInstaller/InfInstaller.cs b/PrinterDriverInstaller/InfInstaller.cs
index 0ef47670d..ba4b1e339 100644
--- a/PrinterDriverInstaller/InfInstaller.cs
+++ b/PrinterDriverInstaller/InfInstaller.cs
@@ -38,16 +38,21 @@ namespace MatterHackers.InfInstaller
 
             string pnpUtilFileName = "PnPUtil.exe";
             
-            string pnPUtilPathAndFileName = Path.Combine("C:/WIndows/winsxs/amd64_microsoft-windows-pnputil_31bf3856ad364e35_6.1.7600.16385_none_5958b438d6388d15", pnpUtilFileName);
+            string pnPUtilPathAndFileName = Path.Combine("C:/Windows/winsxs/amd64_microsoft-windows-pnputil_31bf3856ad364e35_6.1.7600.16385_none_5958b438d6388d15", pnpUtilFileName);
+            bool fileExists = File.Exists(pnPUtilPathAndFileName);
 
-            // Disable redirection  
-            IntPtr ptr = new IntPtr();
-            bool isWow64FsRedirectionDisabled = Wow64DisableWow64FsRedirection(ref ptr);
-            if (isWow64FsRedirectionDisabled)
+            if (!fileExists)
             {
-                pnPUtilPathAndFileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), pnpUtilFileName);
+                // Disable redirection  
+                IntPtr ptr = new IntPtr();
+                bool isWow64FsRedirectionDisabled = Wow64DisableWow64FsRedirection(ref ptr);
+                if (isWow64FsRedirectionDisabled)
+                {
+                    pnPUtilPathAndFileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), pnpUtilFileName);
+                }
             }
 
+
             driverInstallerProcess.StartInfo.FileName = pnPUtilPathAndFileName;
             driverInstallerProcess.StartInfo.Verb = "runas";
             driverInstallerProcess.StartInfo.UseShellExecute = true;
@@ -56,8 +61,12 @@ namespace MatterHackers.InfInstaller
 
             driverInstallerProcess.WaitForExit();
 
-            // Restore redirection
-            Wow64RevertWow64FsRedirection(ptr);
+            if (!fileExists)
+            {
+                // Restore redirection
+                IntPtr ptr = new IntPtr();
+                Wow64RevertWow64FsRedirection(ptr);
+            }
         }
 
         [STAThread]